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7. Caractérisation des effets d'une contamination complexe par les pesticides d'un petit cours d'eau vosgien emblématique (Cleurie) : une approche interdisciplinaire basée sur les biofilms phototrophes

Author

Chéron, Sarah, Heudre, David, Bonnineau, Chloe, Morin, Soizic, Pons, Marie-Noëlle, Devin, Simon, Felten, V., Laviale, Martin, Laviale, Martin, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Zone Atelier du Bassin de la Moselle [LTSER France] (ZAM), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Direction Régionale de l'Environnement, de l'Aménagement et du Logement - Grand Est (DREAL Grand Est), Riverly (Riverly), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Réseaux épuration et qualité des eaux (UR REBX), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Laboratoire Réactions et Génie des Procédés (LRGP), DIAFORM (Agence de l'Eau Rhin-Meuse, CLEURIE (INSU-CNRS, Zone Atelier Moselle), and PESTINTER (ANSES, PNREST 2020)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDV.EE] Life Sciences [q-bio]/Ecology, environment, diatomées, glyphosate, déformations, tolérance, pesticides, cocktails, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, écotoxicologie microbienne, biofilm
Abstract

National audience; La Directive Cadre sur l’Eau impose l’atteinte ou le maintien du bon état écologique des masses d’eau. Il s’avère donc indispensable de disposer d’indicateurs précoces de la qualité des masses d’eau en conditions naturelles. Si de nombreux indicateurs existent, ils ne sont pas toujours en mesure de révéler les effets subtils d’une faible pression épisodique sur des temps d’exposition longs. Il est donc nécessaire de développer de nouveaux indicateurs, complémentaires de ceux actuels mais plus à même de traduire l’impact des contaminants chimiques, notamment les pesticides. Pour ce faire, les biofilms phototrophes présentent un large éventail de descripteurs structurels et fonctionnels pertinents pour le diagnostic environnemental.La contamination observée depuis plusieurs années dans la rivière Cleurie (Région Grand-Est, Vosges) constitue un cadre de travail idéal pour éprouver la sensibilité de ces indicateurs. En raison d’activités industrielles (textiles), ce petit cours d’eau vosgien de tête de bassin versant forestier présente un cocktail complexe de molécules, chroniques et épisodiques (du quotidien au saisonnier) mais en dessous des normes de qualité environnementales. Ce cocktail se caractérise par de fortes concentrations en glyphosate et son principal produit de dégradation, l’acide aminométhylphosphonique (AMPA) ainsi qu'une forte charge de matière organique dissoute (MO) dominée par des colorants et azurants optiques. Dans ce contexte notre objectif est d’estimer les potentiels effets écotoxiques et fonctionnels in situ de cette contamination complexe et d’identifier si ces effets sont liés au rejet de glyphosate et d’AMPA dans la Cleurie. Les résultats générés contribueront à une approche sociologique qui sera développée en parallèle pour suivre la circulation des savoirs scientifiques produits entre les différents acteurs (scientifiques, pouvoirs publics, citoyens…) impliqués dans une controverse locale mais qui s’inscrit dans celle plus générale et ancienne sur la toxicité des pesticides.Différentes stations ont été identifiées le long du linéaire de la Cleurie et un suivi annuel de la structure (biodiversité, déformations) et du fonctionnement (approche PICT-Pollution Induced Community Tolerance) des biofilms phototrophes a été initié. Parallèlement à cette approche de terrain, des bioessais ont été réalisés pour évaluer la toxicité du glyphosate sur les diatomées en conditions standardisées. Pour ce faire, les deux espèces Nitzschia palea et Gomphonema gracile ont été exposées pendant 7j à une large gamme de concentration de glyphosate (0,4-84 mg/L). Dans un second temps, les deux espèces ont été exposées sur une durée plus longue (28j) afin d’évaluer le potentiel tératogène du glyphosate sur la morphologie des frustules. Ces premiers résultats semblent indiquer que la déformation des diatomées benthiques et l'acquisition de tolérance au glyphosate par les biofilms constitueraient des marqueurs plus sensibles que les indices structurels classiques (IBD...) quant à la présence de glyphosate et d’AMPA le long du linéaire du cours d’eau.

Published
2021

13. Effets des microorganismes décomposeurs sur les producteurs primaires dans les ruisseaux : allélopathie, stimulation ou compétition ?

Author

Allen, Joey, Laviale, Martin, Cellamare, Maria, Felten, V., Leflaive, Joséphine, Danger, Michael, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Zone Atelier du Bassin de la Moselle [LTSER France] (ZAM), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2019

14. Do leaf litter decomposers control benthic algae production and community structure? Insights from an outdoor mesocosm experiment

Author

Allen, Joey, Laviale, Martin, Cellamare, Maria, Bachelet, Quentin, Felten, V., Danger, M., Laviale, Martin, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Zone Atelier du Bassin de la Moselle [LTSER France] (ZAM), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de France (IUF), and Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDV.EE] Life Sciences [q-bio]/Ecology, environment, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

15. Relation diversité−fonction dans les sols contaminés – Une approche base sur les traits fonctionnels

Author

Maunoury-Danger, Florence, Aran, Delphine, Auclerc, Appoline, Bachelet, Quentin, Beguiristain, Thierry, Billoir, Elise, David, Billet, Cébron, Aurélie, Felten, V., Lemmel, Florian, Nahmani, Johanne, Rakoto, Alain, Rousselle, Philippe, Schevin, Patrick, Usseglio-Polatera, Philippe, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), and CEBRON, Aurélie

Subjects
[SDE.BE] Environmental Sciences/Biodiversity and Ecology, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, ComputingMilieux_MISCELLANEOUS
Abstract

National audience

Published
2018

16. Multiple stressor effects on resource quality for consumers: a case study with phototrophic biofilm exposed to phosphorus and ionic silver

Author

Danger, Michael, Sanchez-Thirion, Kevin, Crenier, Clément, Bec, Alexandre, Ferriol, J., A, Gonzalez, Perrière, Fanny, Tenhage, Loic, Felten, V., Leflaive, Joséphine, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and FELTEN, Vincent

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2018

17. Soil pollution induced changes in leaf litter chemical composition and in detritivore physiology and activity

Author

Le Navenant, Adrien, Billoir, Elise, Cébron, Aurélie, Coq, Sylvain, Felten, V., Nahmani, Johanne, Maunoury-Danger, Florence, FELTEN, Vincent, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), and Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2018

18. Etude écotoxicologique de la mixture de la deltaméthrine (pesticide pyréthrinoïdes) et du malathion (pesticide Organophosphore) sur Daphnia magna (Crustacé, Cladocère)

Author

Hela Toumi, Mohammed Bejaoui, Maurice Millet, Claudemir Marcos Radetski, Baba Issa Camara, Felten, V., Jean-Francois Masfaraud, Jean-François Férard, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), and FELTEN, Vincent

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2017

19. Etudes écotoxicologique et protéomique avec deux souches de Daphnia magna (crustacea, cladocera) après exposition a la Deltaméthrine (insecticide pyréthrinoïdes)

Author

Hela Toumi, Mohammed Bejaoui, Françoise Immel, Bénédicte Sohm, Maurice Millet, Claudemir Marcos Radetski, Felten, V., Jean-François Férard, FELTEN, Vincent, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), and Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2017

21. Single and combined effect of calcium depletion and resource quality on Gammarus fossarum (Crustacea amphipoda) reproduction

Author

Rollin, Marie-Lou, Coulaud, Rémi, Danger, M., Chaumot, Arnaud, Olivier, Geffard, Felten, V., Irstea Publications, Migration, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Milieux aquatiques, écologie et pollutions (UR MALY), and Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)

Subjects
[SDE] Environmental Sciences, [SDE]Environmental Sciences
Abstract

National audience; Dans les milieux naturels, les organismes sont généralement soumis à des contraintes multiples, parmi lesquelles des substances toxiques, s’ajoutent à des contraintes écologiques naturelles telles que la qualité des ressources alimentaires et des limitation élémentaires. Dans les écosystèmes d'eau douce historiquement soumis à des dépôts acides (comme les cours d’eau vosgienne) et drainant des roches mères difficilement altérables, des réductions drastiques et constantes des concentrations de calcium ([Ca]) s’observent actuellement. En outre, la plupart des ruisseaux de tête de bassin forestiers (systèmes hétérotrophes), souvent situés en amont de toute pollution anthropique directe, sont oligotrophes fournissant aux organismes qu’ils hébergent de faibles qualités de ressources alimentaires (faibles teneurs en phosphore (P) et en acide gras essentiel (AGE)). Parmi eux, G. fossarum est un crustacé détritivore souvent abondant qui contribue de façon importante à la dégradation des litières de feuilles dans les cours d'eau. Cependant, les macro-invertébrés et en particulier les gammares ont besoin de grandes quantités de Ca pour réaliser leurs mues ce qui permet leur croissance et leur reproduction. Si, individuellement, de faibles [Ca] et de faibles qualités de ressources alimentaires ont été rapporté comme influençant négativement les traits d'histoire de vie des gammares (en particulier la survie), aucuns travaux n’ont considérés les effets interactifs de ces contraintes structurantes et réalistes. Les principaux objectifs de cette étude étaient d'évaluer les effets individuels et combinés de faibles [Ca] et de faibles qualités de ressources alimentaires (P, AGE) sur les traits d'histoire de vie de G. fossarum (survie, croissance, reproduction). Nous émettons l'hypothèse, qu’individuellement, ces faibles [Ca] et qualités ressources alimentaires altèrent le cycle de reproduction de G. fossarum, et génèrent des effets interactifs additifs. Pour tester cette hypothèse, nous avons manipulé expérimentalement la teneur en phosphore des litières de feuilles d'érable via son immobilisation par les hyphomycètes (2 traitements: avec et sans addition de P) et nous avons également testé un traitement supplémentaire en complétant l'alimentation des feuilles avec des AGE (Agarose contenant des diatomées lyophilisées). Une eau vosgienne naturelle et déminéralisée (1,5 mg Ca / L) a été supplémentée avec du CaSO4 pour obtenir trois traitements de [Ca] (1,5, 3 et 10 mg Ca / L). Pendant trois semaines G. fossarum a été exposée à l'un de ces 3 traitements en Ca, tout en étant alimenté par l'une des trois qualités de ressource alimentaire. A la fin de l'expérience, nous avons déterminé i) la survie, ii) la consommation alimentaire, iii) la présence et le nombre des ovocytes, iv) le nombre et le stade des embryons, et v) le stade de mue des gammares. Si aucun effet n'a été observé sur la plupart des paramètres testés, d’importants retards de mue ont été observés chez les gammares exposés aux plus faibles [Ca] mais également aux plus faibles qualités de ressource alimentaire. Par ailleurs, nous avons mis en évidence des effets délétères interactifs additifs : le retard de mues les plus élevés ont été observés chez les gammares exposés aux plus faibles [Ca] et qualité de ressource alimentaire, atteignant un retard de 5-6 jours sur les 30 jours théoriques nécessaires pour effectuer un cycle de reproduction. Ainsi, cette expérience a montré l'effet drastique et réaliste de faibles [Ca] et qualité de nourriture sur la reproduction d'un organisme abondant et fonctionnellement impliqué dans les cours d’eau de tête de bassin versant forestier. Ces résultats mettent en évidence et suggèrent l'effet délétère potentiel et drastique d’une déplétion en [Ca] sur les populations de G. fossarum et sur le fonctionnement des écosystèmes (dégradation des feuilles).

Published
2016

22. ECOSCOPE : une plate-forme de mésocosmes pour évaluer l'impact de stresseurs anthropique sur les écosystèmes aquatiques à plusieurs niveaux d'organisation biologique

Author

Devin, Simon, Bauda, P., Billoir, Elise, Danger, Michael, Felten, V., Pagnout, Christophe, Vignati, Davide A.L., Devin, Simon, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), and Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [STAT]Statistics [stat], [SDV.EE] Life Sciences [q-bio]/Ecology, environment, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, ComputingMilieux_MISCELLANEOUS, [STAT] Statistics [stat]
Abstract

National audience

Published
2016

24. Assessing the effects of silver nanoparticles on the ecophysiology and ecology of Gammarus roeseli

Author

Andreï, Jennifer, Pain-Devin, Sandrine, Bouquerel, Jonathan, Felten, V., Giamberini, Laure, Devin, Simon, Guérold, François, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Devin, Simon

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [STAT]Statistics [stat], [SDV.EE] Life Sciences [q-bio]/Ecology, environment, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, ComputingMilieux_MISCELLANEOUS, [STAT] Statistics [stat]
Abstract

International audience

Published
2015

25. Effects of nutritional stress on the freshwater detritivore, Gammarus fossarum: looking at the molecular level

Author

Sohm, Bénédicte, Arce Funck, Julio, Crenier, Clément, Danger, Michael, Cossu-Leguille, C., Xuereb, Benoit, Devin, Simon, Guérold, François, Felten, V., Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Stress Environnementaux et BIOsurveillance des milieux aquatiques (SEBIO), Institut National de l'Environnement Industriel et des Risques (INERIS)-Université de Reims Champagne-Ardenne (URCA)-Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU)-SFR Condorcet, and Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [STAT]Statistics [stat], [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

26. Effects of nutritional stress on the freshwater detritivore, Gammarus fossarum: looking at the molecular level

Author

Devin, Simon, Garaud, Maël, Felten, V., Auffan, Melanie, Bertrand, Carole, Pagnout, Christophe, Pain-Devin, Sandrine, Rodius, François, Sohm, Bénédicte, Rousselle, Philippe, Tella, Marie, Wagner, Philippe, Giamberini, Laure, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), and Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Institut National de la Recherche Agronomique (INRA)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [STAT]Statistics [stat], [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2015

27. MultiXenobiotic Resistance (MXR) vs Nanoparticles: is MXR a good biomarker of exposure? A study with zebra mussels and gammarids exposed to silver and titanium dioxide nanoparticles

Author

Potet, Marine, Andreï, Jennifer, Marchal, Benoit, Garaud, Maël, Devin, Simon, Felten, V., Giamberini, Laure, Guérold, François, Pain-Devin, Sandrine, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Devin, Simon

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [STAT]Statistics [stat], [SDV.EE] Life Sciences [q-bio]/Ecology, environment, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, ComputingMilieux_MISCELLANEOUS, [STAT] Statistics [stat]
Abstract

International audience

Published
2015

28. Disentangling the response of functional indicators of headwater stream health across a catchment level land-use gradient

Author

Cornut, Julien, Maxime, Fouillet, Marie, Spitoni, Danger, Michael, Devin, Simon, Felten, V., Maunoury-Danger, Florence, Colas, Fanny, Chauvet, Eric, Baudoin, Jean-Marc, Guerold, Francois, FELTEN, Vincent, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), and Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2015

29. Benthic algae ensure the survival and growth of a detritivorous invertebrate in detritus-based headwater streams

Author

Crenier, Clément, Arce Funck, Julio, Bec, Alexandre, Felten, V., Guérold, François, Leflaive, Josephine, Perrière, Fanny, Danger, Michael, FELTEN, Vincent, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), and Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2015

30. Multibiomarker assessment of the long term effects of dissolved and nanoparticulate silver (nAg) on zebra mussels: influence of feeding

Author

Garaud, Maël, Bertrand, Carole, Brulé, Nelly, Devin, Simon, Felten, V., Sohm, Bénédicte, Giamberini, Laure, FELTEN, Vincent, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), and Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2014

31. Ecotoxicity of environmentally realistic silver nanoparticle concentrations: from individual to functional impacts on Gammarus sp (Amphipoda)

Author

Andreï, Jennifer, Pain-Devin, Sandrine, Felten, V., Garaud, Maël, Giamberini, Laure, Poinsaint, Jean-François, Rousselle, Philippe, Wagner, Philippe, Guérold, François, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), and FELTEN, Vincent

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2013

32. Quantification of diet variability in a stream amphipod ; implications for ecosystem functioning. Fundamental and Applied Limnology [anciennement

Author

Felten, V., Tixier, G., Guãrold, F., Crespin De Billy V., De, Dangles, O., Laboratoire Evolution, Génomes et Spéciation (LEGS), Centre National de la Recherche Scientifique (CNRS), and Simonneau, Evelyne

Subjects
[SDV.BA] Life Sciences [q-bio]/Animal biology, [SDV.BA]Life Sciences [q-bio]/Animal biology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

33. Réponses physiologiques et comportementales chez Gammarus pulex exposé à un stress acide

Author

Felten, V., Charmantier, G., Charmantier-Daures, M., Aujoulat, F., Garric, Jeanne, Olivier, Geffard, Biologie des écosystèmes aquatiques (UR BELY), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), and Université Montpellier 2 - Sciences et Techniques (UM2)

Subjects
CEMAGREF, [SDE]Environmental Sciences, BELY, ECO
Abstract

International audience; Physiological and behavioural responses of the acid-sensitive amphipod Gammarus pulex exposed to a wide range of acid conditions (pH 4.1, 5.1, 6.0) under laboratory conditions were investigated. An exposure of 38h to acid conditions caused significant decreases in survival rate, osmolality, haemolymph Na+ concentration, ventilatory and locomotor activity compared to organisms exposed to a circumneutral medium (pH 7.9). We highlighted the interest of using individual response distribution, since drastic effects can be detected in organisms exposed to pH 6.0, in particular for osmolality: the response can be divided into two groups, unimpacted and impacted organisms. Moreover this representation permitted to evaluate the health level of individual organisms through the determination of threshold values. Significant correlations between mean pH and mean physiological/behavioural responses were observed. The relationships between individual responses permitted not only to compare endpoints, but also to show that affected organisms were impacted by ionoregulation failure, hypoventilation and low locomotor activity. The energetic reallocation in favour of maintenance functions, such as osmoregulation, is discussed. The results of this study indicate that the values of haemolymph Na+ concentration, osmolality and locomotor activity in G. pulex could be effective ecophysiological/behavioural markers to monitor freshwater ecosystems and to assess the health of organisms or populations.

Published
2008
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34. Acetylcholinesterase activity in Gammarus pulex (Crustacea Amphipoda): methological and field studies

Author

Xuereb, Benoit, Mons, Raphaël, Felten, V., Garric, Jeanne, Geffard, Olivier, Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), and FELTEN, Vincent

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2007

35. La salinité sélectionne-t-elle les populations introduites de l'amphipode Dikerogammarus villosus le long de son corridor migratoire ?

Author

Devin, Simon, Felten, V., Beisel, Jean-Nicolas, Devin, Simon, Laboratoire des Interactions Ecotoxicologie, Biodiversité, Ecosystèmes (LIEBE), and Université Paul Verlaine - Metz (UPVM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDV.EE]Life Sciences [q-bio]/Ecology, environment, [STAT]Statistics [stat], [SDV.EE] Life Sciences [q-bio]/Ecology, environment, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, ComputingMilieux_MISCELLANEOUS, [STAT] Statistics [stat]
Abstract

National audience

Published
2007

36. Acetylcholinesterase activity in Gammarus pulex (Crustacea, Amphipoda): methodological and field studies

Author

Xuereb, B., Mons, R., Felten, V., Garric, Jeanne, Olivier, Geffard, Irstea Publications, Migration, Biologie des écosystèmes aquatiques (UR BELY), and Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)

Subjects
[SDE] Environmental Sciences, [SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

37. Characterization of cholinesterase activities in Gammarus pulex (Crustacea, Amphipoda)

Author

Xuereb, B., Felten, V., Mons, R., Garric, Jeanne, Olivier, Geffard, FELTEN, Vincent, Irstea Publications, Migration, Biologie des écosystèmes aquatiques (UR BELY), and Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)

Subjects
[SDE] Environmental Sciences, [SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDE]Environmental Sciences, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2007

38. Health marker in the freshwater amphipod Gammarus pulex

Author

Felten, V., Charmantier, G., Charmantier-Daures, M., Casiot, C., Garric, Jeanne, Olivier, Geffard, FELTEN, Vincent, Biologie des écosystèmes aquatiques (UR BELY), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), and Université Montpellier 2 - Sciences et Techniques (UM2)

Subjects
[SDV.AEN] Life Sciences [q-bio]/Food and Nutrition, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO] Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDE]Environmental Sciences, [SDV.EE.ECO] Life Sciences [q-bio]/Ecology, environment/Ecosystems, [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology, [SDV.EE.IEO] Life Sciences [q-bio]/Ecology, environment/Symbiosis, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition, ComputingMilieux_MISCELLANEOUS, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis
Abstract

International audience

Published
2007

39. Impact of cadmium on osmoregulation in the freshwater amphipod Gammarus pulex

Author

Felten, V., Olivier, Geffard, Charmantier-Daures, M., Charmantier, G., Garric, Jeanne, Biologie des écosystèmes aquatiques (UR BELY), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), and Université Montpellier 2 - Sciences et Techniques (UM2)

Subjects
[SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2006

42. Community structure and nutrient level control the tolerance of autotrophic biofilm to silver contamination.

Author

Leflaive, J., Felten, V., Ferriol, J., Lamy, A., Ten-Hage, L., Bec, A., and Danger, M.

Subjects
BIOFILMS, MICROBIAL aggregation, EUTROPHICATION, CYANOBACTERIA, DIATOMS, PHOSPHORUS, MICROBIAL ecology
Abstract

Autotrophic biofilms are complex and fundamental biological compartments of many aquatic ecosystems. Since microbial species differ in their sensitivity to stressors, biofilms have long been proposed for assessing the quality of aquatic ecosystems. Among the many stressors impacting aquatic ecosystems, eutrophication and metal pollution are certainly the most common. Despite that these stressors often occur together, their effects on biofilms have been far much studied separately than interactively. In this study, we evaluated the interactive effects of silver (Ag), a reemerging contaminant, and phosphorus (P), a nutrient often associated with freshwater eutrophication, on the structure and functioning of two types of autotrophic biofilms, one dominated by diatoms and another one dominated by cyanobacteria. We hypothesized that P would alleviate the toxic effects of Ag, either directly, through the contribution of P in metal detoxification processes, or indirectly, through P-mediated shifts in biofilm community compositions and associated divergences in metal tolerance. Results showed that Ag impacted biofilm community structure and functioning but only at unrealistic concentrations (50 μg/L). P availability led to significant shifts in biofilm community composition, these changes being more pronounced in diatom- than those in cyanobacteria-dominated biofilm. In addition, P tended to reduce the impact of Ag but only for the cyanobacteria-dominated biofilm. More generally, our results highlight the preponderant role of the initial community structure and nutrient level on biofilm response to metallic pollutants. [ABSTRACT FROM AUTHOR]

Published
2015
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45. Acute and chronic toxicity of rare earth elements-enriched sediments from a prospective mining area: Effects on life history traits, behavioural and physiological responses of Gammarus fossarum (Crustacea Amphipoda).

Author

Mehennaoui K, Felten V, Caillet C, and Giamberini L

Subjects
Animals, Male, Life History Traits, Ecosystem, Female, Behavior, Animal drug effects, Amphipoda drug effects, Amphipoda physiology, Water Pollutants, Chemical toxicity, Geologic Sediments chemistry, Mining, Metals, Rare Earth toxicity
Abstract

Rare earth elements (REE) have an essential role and growing importance in the world's economy. They are attracting interest from society, policymakers, and scientists. The rapidly growing global demand for REE in several strategic industrial and agricultural sectors led many countries to consider the (re)-opening of mining activities for REE extraction. Hence, their increasing use led to the disruption of their biogeochemical cycles with anthropic abnormalities already observed in aquatic ecosystems. Nonetheless, REE remain less studied, and their mechanisms of toxicity actions are not fully understood. As amphipods, Gammarus fossarum represent an important part of the aquatic macroinvertebrate assemblage and are generally used in ecotoxicological studies for their high ecological relevance. However, their use for the study of REE effects has been rather limited so far. The current study aims to assess the potential effects of two naturally REE-enriched sediments (N2 and B4) on G. fossarum. Effects on life history traits, behavioural and physiological responses have been evaluated. Exposing G. fossarum males for 72h to sediments N2 and B4 led to a decrease in haemolymph osmolality and locomotion while an increase in ventilatory activity was observed. Exposing G. fossarum pre-copula pairs with females at the same reproductive stage to the naturally REE-enriched sediments, for one moult cycle duration (∼30 days) showed that sediment B4 led to i) a significant uptake of REE, ii) a significant decrease in the proportion of females with oocytes and iii) a significant reduction in the total number of juveniles. The physicochemical analyses of sediments showed that B4 contains the highest amount of REE with a higher proportion of light REE. The present study gives the first insights into the potential toxicity of REE on G. fossarum as they may have deleterious effects on G. fossarum population's dynamics, which may alter the functioning of aquatic ecosystems., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Published
2024
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46. Photodegradation of disposable polypropylene face masks: Physicochemical properties of debris and implications for the toxicity of mask-carried river biofilms.

Author

Bihannic I, Gley R, Gallo L, Badura A, Razafitianamaharavo A, Beuret M, Billet D, Bojic C, Caillet C, Morlot P, Zaffino M, Jouni F, George B, Boulet P, Noûs C, Danger M, Felten V, Pagnout C, and Duval JFL

Subjects
Masks, Photolysis, Polypropylenes, Biofilms, Plastics, Rivers, Microbiota
Abstract

COVID-19 outbreak led to a massive dissemination of protective polypropylene (PP) face masks in the environment, posing a new environmental risk amplified by mask photodegradation and fragmentation. Masks are made up of a several kilometres long-network of fibres with diameter from a few microns to around 20 µm. After photodegradation, these fibres disintegrate, producing water dispersible debris. Electrokinetics and particle stability observations support that photodegradation increases/decreases the charge/hydrophobicity of released colloidal fragments. This change in hydrophobicity is related to the production of UV-induced carbonyl and hydroxyl reactive groups detectable after a few days of exposure. Helical content, surface roughness and specific surface area of mask fibres are not significantly impacted by photodegradation. Fragmentation of fibres makes apparent, at the newly formed surfaces, otherwise-buried additives like TiO 2 nanoparticles and various organic components. Mortality of gammarids is found to increase significantly over time when fed with 3 days-UV aged masks that carry biofilms grown in river, which is due to a decreased abundance of microphytes therein. In contrast, bacteria abundance and microbial community composition remain unchanged regardless of mask degradation. Overall, this work reports physicochemical properties of pristine and photodegraded masks, and ecosystemic functions and ecotoxicity of freshwater biofilms they can carry., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)

Published
2024
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47. Lessons from linking bio- and ecological traits to stoichiometric traits in stream macroinvertebrates.

Author

Beck M, Billoir E, Felten V, Meyer A, Usseglio-Polatera P, and Danger M

Abstract

Ecologists rely on various functional traits when investigating the functioning of ecological systems and its responses to global changes. Changing nutrient levels, for example, can affect taxa expressing different trait combinations in various ways, e.g., favoring small, fast-growing species under high phosphorus conditions. Stoichiometric traits, describing the elemental composition of organism body tissues, can help in understanding the mechanisms behind such functional shifts. So far, mainly life-history traits have been related to body stoichiometry (e.g., the growth rate hypothesis) on a limited number of taxa, and there is little knowledge of the general link between stoichiometric and other functional traits on a taxonomically large scale. Here, we highlight this link in the freshwater macroinvertebrates, testing predictions from underlying trait-based and Ecological Stoichiometry Theory (EST) in >200 taxa belonging to eight larger taxonomic groups. We applied a series of multivariate analyses on six of their stoichiometric traits (%C, %N, %P, C:N, C:P, and N:P) and 23 biological and ecological traits. We found significant relationships between stoichiometric traits and other types of traits when analyzing single-trait and multi-trait profiles. Patterns found within traits related to organism development or nutrient cycling were in line with our assumptions based on EST, e.g., traits describing predators were associated with high %N; traits suggesting a fast development (small maximum body size and high molting frequency) with high %P. Associations between ecological traits and body stoichiometry could be explained by the longitudinal stream gradient: Taxa preferring headwater habitats (i.e., high altitude, coarse substrate, and cold temperature) exhibited high %N and %P. Demonstrating the link between stoichiometric and both bio- and ecological traits on a large diversity of taxa underlines the potential of integrating stoichiometric traits into ecological analyses to improve our understanding of taxonomic and functional responses of communities-and ecosystems-to changing environmental conditions worldwide., (© 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.)

Published
2022
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48. Continental-scale patterns of hyper-cryptic diversity within the freshwater model taxon Gammarus fossarum (Crustacea, Amphipoda).

Author

Wattier R, Mamos T, Copilaş-Ciocianu D, Jelić M, Ollivier A, Chaumot A, Danger M, Felten V, Piscart C, Žganec K, Rewicz T, Wysocka A, Rigaud T, and Grabowski M

Subjects
Animals, DNA Barcoding, Taxonomic, Ecotoxicology, Europe, Evolution, Molecular, Genetic Linkage, Phylogeny, Amphipoda classification, Amphipoda genetics, Fresh Water, Genetic Variation, Hydrobiology
Abstract

Traditional morphological diagnoses of taxonomic status remain widely used while an increasing number of studies show that one morphospecies might hide cryptic diversity, i.e. lineages with unexpectedly high molecular divergence. This hidden diversity can reach even tens of lineages, i.e. hyper cryptic diversity. Even well-studied model-organisms may exhibit overlooked cryptic diversity. Such is the case of the freshwater crustacean amphipod model taxon Gammarus fossarum. It is extensively used in both applied and basic types of research, including biodiversity assessments, ecotoxicology and evolutionary ecology. Based on COI barcodes of 4926 individuals from 498 sampling sites in 19 European countries, the present paper shows (1) hyper cryptic diversity, ranging from 84 to 152 Molecular Operational Taxonomic Units, (2) ancient diversification starting already 26 Mya in the Oligocene, and (3) high level of lineage syntopy. Even if hyper cryptic diversity was already documented in G. fossarum, the present study increases its extent fourfold, providing a first continental-scale insight into its geographical distribution and establishes several diversification hotspots, notably south-eastern and central Europe. The challenges of recording hyper cryptic diversity in the future are also discussed.

Published
2020
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49. Microplastics enhance Daphnia magna sensitivity to the pyrethroid insecticide deltamethrin: Effects on life history traits.

Author

Felten V, Toumi H, Masfaraud JF, Billoir E, Camara BI, and Férard JF

Subjects
Animals, Daphnia, Ecosystem, Female, Insecticides, Microplastics, Nitriles, Pyrethrins, Reproduction, Water Pollutants, Chemical, Life History Traits
Abstract

The aim of the study was to investigate the influence of microplastics (MPs) on the ecotoxicity of common contaminants of aquatic ecosystems. As a model contaminant, the hydrophobic pesticide deltamethrin (DM) was chosen, and its effects on life history traits of Daphnia magna were studied in the presence or absence of polyethylene MPs. Commercialized DM and MPs obtained as dry powder were used in the experiment. According the manufacturer (Cospheric, Santa Barbara, CA, USA) MPs were spherical (1-4 μm in diameter), had a density of 0.96 g/cm -3 and were without any solvent. Three concentrations of polyethylene MPs were tested (0, 1, 10 mg/L) with two realistic concentrations of DM (0 and 40 ng/L) and a solvent control (acetone). During the 21 d experiment, D. magna neonates were individually exposed to the treatments, and the effects of MPs and DM alone and together were evaluated by assessing survival, number of cumulative molts, days to first brood, number of broods, number of neonates per surviving adult, and body length. Significant detrimental effects on survival were only observed for the two mixture treatments. DM alone (40 ng/L) delayed the days to first brood and reduced the number of neonates per surviving adult, whereas MPs alone (10 mg/L) induced significant reduction in the number of juveniles by surviving adults. The combined exposure to DM and MPs clearly had a synergistic effect on survival, brood number, and number of neonates per surviving female. For example, compared to exposure to 40 ng/L of DM alone, the addition of 1 mg/L of MPs resulted in a 51.1% reduction in number of neonates per surviving female and a 46% reduction in brood number. These results suggest the potential drastic effects of this kind of mixed exposure on daphnid populations, which are key components of freshwater food webs., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2020 Elsevier B.V. All rights reserved.)

Published
2020
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50. High food quality increases infection of Gammarus pulex (Crustacea: Amphipoda) by the acanthocephalan parasite Pomphorhynchus laevis.

Author

Sanchez-Thirion K, Danger M, Bec A, Billoir E, Labaude S, Rigaud T, Beisel JN, and Felten V

Subjects
Animals, Ecosystem, Female, Host-Parasite Interactions, Kaplan-Meier Estimate, Locomotion, Male, Parasite Load, Regression Analysis, Rivers, Time Factors, Video Recording, Acanthocephala growth & development, Amphipoda parasitology, Food Supply standards
Abstract

Parasitism is an important process in ecosystems, but has been largely neglected in ecosystem research. However, parasites are involved in most trophic links in food webs with, in turn, a major role in community structure and ecosystem processes. Several studies have shown that higher nutrient availability in ecosystems tends to increase the prevalence of parasites. Yet, most of these studies focused on resource availability, whereas studies investigating resource quality remain scarce. In this study, we tested the impact of the quality of host food resources on infection by parasites, as well as on the consequences for the host. Three resources were used to individually feed Gammarus pulex (Crustacea: Amphipoda) experimentally infected or not infected with the acanthocephalan species Pomphorhynchus laevis: microbially conditioned leaf litter without phosphorus input (standard resource); microbially conditioned leaf litter enriched in phosphorus; and microbially conditioned leaf litter without phosphorus input but complemented with additional inputs of benthic diatoms rich in both phosphorus and eicosapentaenoic acid. During the 110 day experiment, infection rate, parasite load, host survival, and parasite-mediated behavioral traits implicated in trophic transmission were measured (refuge use, geotaxis and locomotor activity). The resources of higher quality, regardless of the infection status, reduced gammarid mortality and increased gammarid growth. In addition, higher quality resources increased the proportion of infected gammarids, and led to more cases of multi-infections. While slightly modifying the geotaxis behavior of uninfected gammarids, resource quality did not modulate the impact of parasites on host behavior. Finally, for most parameters, consumption of algal resources had a greater impact than did phosphorus-enriched leaf litter. Therefore, manipulation of resource quality significantly affected host-parasite relationships, which stressed the need for future research to investigate in natura the relationships between resource availability, resource quality and parasite prevalence., (Copyright © 2019 Australian Society for Parasitology. Published by Elsevier Ltd. All rights reserved.)

Published
2019
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